Review on LASFIT Switchback Polarity Extremely Daytime by Fernando Hudson

This works great in my 2018 Jeep Wrangler JK as front turn signal. The high beams are white and then change to amber/amber when the turn signals or hazard warning lights are used. In order to convert the LEDs it was necessary to install a resistor on the turn signal wire. FYI, my application lists 3157NA or 3757A. The 3157 flashlight can be converted for use by cutting off the plastic retaining tabs on the side of the bulb. Then it works great! So far they work great and are much brighter than standard bulbs.